code: def ec2_client_stub_max_retries():
      resource = resource_cache("ec2", "us-west-2", BOTO_MAX_RETRIES)
      with Stubber(resource.meta.client) as stubber:
          yield stubber
          stubber.assert_no_pending_responses()
  
file_path: ray/python/ray/tests/aws/conftest.py
imports: import pytest
  from ray.autoscaler._private.constants import BOTO_MAX_RETRIES
  from ray.autoscaler._private.aws.utils import resource_cache, client_cache
  from botocore.stub import Stubber
label_desc: Use image node_id 4 for calling a global function with example usage: ec2_client_stub_max_retries() without return types